function enter(pi) {
    if (pi.getEvanIntroState("mo30=o;mo40=o")) {
        return false;
    }
    pi.updateEvanIntroState("mo30=o;mo40=o");
    pi.TutInstructionalBalloon("Effect/OnUserEff.img/guideEffect/evanTutorial/evanBalloon40");
    return true;
}
